UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ---------------------- FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): MARCH 31, 2003 COMMISSION FILE NUMBER: 1-13011 COMFORT SYSTEMS USA, INC. (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER) DELAWARE 76-0526487 (State or other jurisdiction (I.R.S. Employer Identification No.) of incorporation) 777 POST OAK BOULEVARD SUITE 500 HOUSTON, TEXAS 77056 (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE) REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (713) 830-9600 ITEM 7(c) EXHIBITS The following Exhibits are included herein: Exhibit 99 Press Release of Comfort Systems USA, Inc. dated March 31, 2002, reporting Comfort's financial results for the fourth quarter of 2002 and for the year 2002. ITEM 12. MATERIAL INFORMATION DISCLOSURE Attached and incorporated herein by reference as Exhibit 99 is a copy of a press release of Comfort System USA, Inc. dated March 31, 2003, reporting Comfort's financial results for the fourth quarter of 2002 and for the year 2002. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. COMFORT SYSTEMS USA, INC. By: /s/ William George --------------------------------- William George Senior Vice President and General Counsel Date: April 1, 2003 2 EXHIBIT INDEX Exhibit Number Description 99 Press Release of Comfort System USA, Inc. dated March 31, 2003, reporting Comfort's financial results for the fourth quarter of 2002 and for the year 2002. 3